Display device and method of manufacturing display device

Abstract

The technology includes: a substrate; a semiconductor layer on the substrate; gate electrodes; an electrode layer including source electrodes and drain electrodes to form thin film transistors in combination with the semiconductor layer and the gate electrodes; first touch panel lines extending in a first direction; second touch panel lines in the same layer as the first touch panel lines, the second touch panel lines extending in a second direction intersecting the first direction; and connecting sections in a layer other than the layer containing the first touch panel lines and the second touch panel lines, the connecting sections connecting either the first touch panel lines or the second touch panel lines in intersection regions.

1 . A display device comprising:
 a substrate;   a semiconductor layer on the substrate;   gate electrodes in either one or both of a layer on the semiconductor layer facing the substrate and a layer on the semiconductor layer opposite the substrate;   an electrode layer including source electrodes and drain electrodes to form thin film transistors in combination with the semiconductor layer and the gate electrodes;   first touch panel lines in a layer opposite the substrate with respect to the thin film transistors, the first touch panel lines extending in a first direction;   second touch panel lines in the same layer as the first touch panel lines, the second touch panel lines extending in a second direction intersecting the first direction; and   connecting sections in a layer other than the layer containing the first touch panel lines and the second touch panel lines, the connecting sections connecting either the first touch panel lines or the second touch panel lines in intersection regions including locations where the first touch panel lines would intersect the second touch panel lines.   
     
     
         2 . The display device according to  claim 1 , wherein the connecting sections are disposed in a layer containing the semiconductor layer. 
     
     
         3 . The display device according to  claim 2 , wherein the connecting sections include low-resistance semiconductor regions. 
     
     
         4 . The display device according to  claim 1 , further comprising common electrodes in a layer opposite the substrate with respect to the thin film transistors, wherein the connecting sections are disposed in the same layer as the common electrodes. 
     
     
         5 . The display device according to  claim 1 , wherein the connecting sections are disposed in the same layer as the gate electrodes. 
     
     
         6 . The display device according to  claim 1 , further comprising, in a layer on the semiconductor layer facing the substrate, a conductive light-blocking layer overlapping the semiconductor layer in a plan view, wherein the connecting sections are disposed in the same layer as the light-blocking layer. 
     
     
         7 . The display device according to  claim 1 , wherein the connecting sections are disposed in the same layer as the drain electrodes and the source electrodes. 
     
     
         8 . The display device according to  claim 1 , wherein:
 either the first touch panel lines or the second touch panel lines include, in the intersection regions, first branch sections extending in a direction other than a direction in which either the first touch panel lines or the second touch panel lines that are connected to the connecting sections extend; and   the connecting sections connect either the first touch panel lines or the second touch panel lines via the first branch sections.   
     
     
         9 . The display device according to  claim 1 , wherein:
 the connecting sections include, in the intersection regions, second branch sections extending in a direction other than a direction in which either the first touch panel lines or the second touch panel lines that are connected to the connecting sections extend; and   the connecting sections connect either the first touch panel lines or the second touch panel lines via the second branch sections.   
     
     
         10 . The display device according to  claim 1 , further comprising:
 gate lines connected to the gate electrodes and extending in the first direction; and   source lines connected to the source electrodes and extending in the second direction, wherein   the gate lines and the first touch panel lines at least partially overlap in a plan view, and   the source lines and the second touch panel lines at least partially overlap in a plan view.   
     
     
         11 . A method of manufacturing a display device, the method comprising:
 forming thin film transistors on a substrate;   forming first touch panel lines and second touch panel lines both in a single layer opposite the substrate with respect to the thin film transistors, the first touch panel lines extending in a first direction and the second touch panel lines extending in a second direction intersecting the first direction; and   forming connecting sections in a layer other than the layer containing the first touch panel lines and the second touch panel lines, the connecting sections connecting either or both of the first touch panel lines and the second touch panel lines in intersection regions including locations where the first touch panel lines would intersect the second touch panel lines.